It was a cold day for the plunge, with temps barely reaching into the teens and wind chills even colder as morning snow tapered off. Crews continued to crush the ice as hundreds of participants flooded into the waters as part of the plunge to benefit the Special Olympics.

WATCH: Rahm Emanuel's Advice To Jimmy Fallon

Chicago Mayor Rahm Emanuel has a few pieces of advice for "The Tonight Show" host Jimmy Fallon ahead of the Polar Plunge in Lake Michigan. (Published Friday, Feb. 27, 2015)

NBC Chicago is a media sponsor for Sunday's event at North Avenue Beach.